Remove gradle git plugin

android/uhabits-android/build.gradle

@@ -2,13 +2,6 @@ apply plugin: 'idea'
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
-import org.ajoberstar.grgit.Grgit
-
-ext {
-    git = Grgit.open(currentDir: projectDir)
-    GIT_COMMIT = git.head().id.substring(0, 8)
-    GIT_BRANCH = git.branch.current.name
-}
 
 android {
     compileSdkVersion COMPILE_SDK_VERSION as Integer
@@ -27,7 +20,7 @@ android {
 
     defaultConfig {
         versionCode VERSION_CODE as Integer
-        versionName "$VERSION_NAME ($GIT_BRANCH $GIT_COMMIT)"
+        versionName "$VERSION_NAME"
         minSdkVersion MIN_SDK_VERSION as Integer
         targetSdkVersion TARGET_SDK_VERSION as Integer